Rear Sprocket 49T 6.43 BC 520 Chain

The Rear Sprocket 49T 6.43 BC 520 Chain is an essential upgrade for riders looking to optimize their vehicle's acceleration and torque delivery. Designed for high-performance applications, this 49-tooth sprocket allows for more aggressive gearing changes compared to standard stock configurations. Whether you are building a dedicated racing machine or maintaining a high-use drivetrain, this component provides the mechanical advantage needed for rapid power transfer. Riders often buy this specific tooth count to fine-tune their power band for specific track conditions or varied terrain.

Manufactured by M and W Aluminum Products, this sprocket features a 6.43-inch bolt circle pattern to ensure a precise and secure fit on compatible hubs. The unit is engineered specifically for a 520 chain, which is the industry standard for balancing weight reduction with high tensile strength. The lightweight aluminum construction significantly reduces unsprung weight, which improves suspension response and overall handling characteristics. Precision machining ensures that each tooth profile minimizes friction and wear, extending the service life of your entire drivetrain system.

Installation of the Rear Sprocket 49T 6.43 BC 520 Chain is straightforward for those familiar with drivetrain maintenance and standard bolt patterns. Its 49T configuration is ideal for those seeking improved low-end pull without sacrificing significant top-end speed. When reviewing specifications for your next build, the 6.43 BC measurement is the critical factor for ensuring hub compatibility. This sprocket serves as a reliable performance enhancement for a wide range of powersports applications requiring a 520-pitch chain and precision-milled components.